GNSS+4G+WiFi Multi-Mode Integrated 3-in-1 External Antenna

2026-06-08/ By Admin

In applications such as telematics terminals, industrial routers, outdoor monitoring devices, and intelligent transportation systems, equipment often needs to support satellite positioning, 4G cellular communication, and WiFi wireless connectivity simultaneously. Traditional solutions require separate antennas for each communication standard, which not only occupy multiple ports on the device enclosure but also lead to complex cabling, higher costs, and potential signal interference. How can a single antenna meet the needs of three different wireless communications? The SKA46M24-30PFA 3-in-1 external antenna provides a highly integrated answer – combining a high-performance active GNSS antenna, a 4G full-band antenna, and a 2.4GHz WiFi antenna into one compact housing. With industrial-grade reliability and easy peel-and-stick mounting, it offers a "one antenna, all-in-one reception" solution for a wide range of smart devices.

I. Three Major Pain Points of Traditional Multi-Antenna Solutions

• Multiple device openings and complex mechanical design – Separate antenna ports for positioning, 4G, and WiFi increase enclosure space requirements and waterproofing difficulty.
• Cumbersome cabling and high cost – Three independent antennas mean three RF cables, raising assembly time and material costs.
• Hard-to-control signal interference – Placing multiple antennas in close proximity can cause mutual interference and degrade receiver sensitivity.

Thanks to its integrated design, the SKA46M24-30PFA efficiently isolates the three antennas within a single housing, completely solving the above problems.

II. Four Core Advantages – Defining a New Standard for Multi-Mode Antennas

1. High-Precision Active GNSS Antenna Supporting Dual-Band Satellite Signals
The antenna element uses a ceramic radiator plus a low-noise amplifier (LNA), simultaneously covering the L-band (1166–1186MHz) and GPS/BeiDou band (1550–1610MHz) for satellite navigation downlink signals. The built-in amplifier provides a gain as high as 32dB ±2dB with a noise figure ≤1.5dB, effectively compensating for cable loss over a 3-meter cable and ensuring stable satellite acquisition even in weak signal environments. Peak gain is 3.5dBi, axial ratio ≤3.0dB, and right-hand circular polarization (RHCP) is excellent, providing strong anti-multipath interference capability.

2. 4G Full-Band Antenna with Wide Frequency Coverage
The antenna supports the wide frequency ranges of 698–960MHz and 1710–2700MHz, covering all major domestic 4G LTE bands (Band 1/3/5/8/34/38/39/40/41, etc.) while remaining backward compatible with 3G/2G. VSWR ≤2.0, gain 3dBi, maximum input power 50W. It comes with a FAKRA connector (SMA adapter included) and is compatible with mainstream 4G modules.

3. High-Gain WiFi Antenna for Stable 2.4GHz Connectivity
Operating frequency: 2400–2500MHz, gain up to 4.55dBi, VSWR ≤2.0, delivering reliable connections to wireless routers or access points, ideal for field debugging, data backhaul, or hotspot coverage.

4. Industrial-Grade Reliability – Rock-Solid in Harsh Environments

• Wide operating temperature: -40°C to +85°C, the same for storage, suitable for extreme outdoor cold and heat.
• Water and dust resistance: Passed rain test (4 hours of water spray with no ingress) – excellent waterproof performance.
• Corrosion resistance: 48-hour salt spray test shows no surface oxidation or corrosion, suitable for coastal high-salt environments.
• High/low temperature testing: 48 hours at 80°C and 48 hours at -40°C – performance deviations are within allowable limits.

III. Easy Installation – Peel and Stick

The SKA46M24-30PFA is designed with installation convenience in mind:

• 3M adhesive mounting: Pre-applied 3M double-sided tape on the bottom – just peel off the protective film and firmly stick to flat surfaces such as vehicle roofs, cabinets, or equipment enclosures. No drilling required.
• 3-meter standard cable: RG174 coaxial cable, 3 meters long, with a straight SMA male connector, directly compatible with mainstream positioning/communication modules.
• Compact design: Dimensions only 95mm × 46mm × 17mm, weight <110g, black housing for a low-profile appearance.

IV. Typical Application Scenarios

• Telematics and in-vehicle terminals: Mounted on the roof, provides 4G communication for T‑BOX, GNSS positioning for vehicle navigation, and WiFi signals for in-car hotspots.
• Industrial IoT gateways: Outdoor gateway devices need only one antenna to achieve positioning, 4G cloud connectivity, and WiFi maintenance – simplifying interface design.
• Smart agriculture monitoring stations: Field monitoring equipment uses this antenna to send soil data back, receive differential signals, and perform local debugging.
• Security and inspection robots: Provides all‑weather positioning and communication support for outdoor patrol robots.

V. Technical Specifications at a Glance

Physical Characteristics

• Dimensions: 95mm × 46mm × 17mm
• Weight: <110g
• Housing color: Black
• Mounting method: 3M double-sided adhesive tape
• Cable: RG174, length 3 meters
• Connector: SMA male straight

Environmental Ratings

• Operating temperature: -40°C to +85°C
• Storage temperature: -40°C to +85°C
• Humidity: 95% ~ 100%
• Protection: Rainproof, salt-spray corrosion resistant

GNSS Antenna Performance

• Receive frequencies: 1166–1186MHz and 1550–1610MHz
• Center frequencies: 1186MHz / 1580MHz
• VSWR: ≤1.5
• Active gain: 32dB ± 2dB
• Noise figure: ≤1.5dB
• Operating voltage: 2.7V – 5V
• Operating current: ≤15mA

4G Antenna Performance

• Frequency range: 698–960MHz / 1710–2700MHz
• VSWR: ≤2.0
• Gain: 3dBi
• Impedance: 50Ω
• Max power: 50W

WiFi Antenna Performance

• Frequency range: 2400–2500MHz
• VSWR: ≤2.0
• Gain: 4.55dBi
• Impedance: 50Ω
• Max power: 5W

VI. Reliability Verification

The SKA46M24-30PFA has passed multiple environmental tests to ensure long-term outdoor operation:

• High-temperature test: 48 hours in an 80°C drying oven – no deformation, no oxidation, performance deviations within allowable limits.
• Low-temperature test: 48 hours in a -40°C freezer – no deformation, no oxidation or rust after returning to ambient temperature.
• Rain test: 4 hours of water spray – no water ingress.
• Salt-spray test: 48 hours in a salt-spray chamber – no surface oxidation or corrosion.

Simplify Terminal Design with Multi‑Mode Integration

The SKA46M24-30PFA 3‑in‑1 external antenna integrates GNSS, 4G, and WiFi antenna functions into one unit. It helps hardware engineers simplify RF front‑end design, saves valuable enclosure space for end products, and ensures communication quality with industrial-grade reliability in a variety of harsh environments.